Agricultural Eco-efficiency And Its Influencing Factors In Low Carbon Perspective

Since ancient times,hunger breeds discontentment,agriculture is China's national economic growth of the basic industry,agricultural economic growth is based on sustainable and efficient agricultural production.The traditional agricultural production efficiency of the main increase in large number of fertilizer,pesticides,agricultural mulch and other means of production unlimited investment in agricultural production,the more inputs,the higher the efficiency.However,the input of the production data of excessive carbon sources has led to the expansion of carbon emissions,the serious pollution of agricultural environment,the slow and the sustainable agricultural economy and environment.Faced the deteriorating agricultural ecological environment,the traditional agricultural production efficiency can not truly reflect the production efficiency of agricultural production environment pollution.The agricultural eco-efficiency of environmental pollution into non-expected output has become a hotspot in the coordinated development of agriculture and environment.The Yangtze River economic belt runs through the eastern,central and western regions of China,which is one of the regions with the strongest comprehensive strength and strong strategic support.The development of each region in the economic belt echoes the development of the three major regions in China.Regardless of the agricultural industry in the region,the comprehensive economic strength gap is very obvious,showing the "inverse geographic gradient effect".Study the agricultural production status of the Yangtze River economic belt under the low carbon constraint,to narrow the regional agricultural development gap,mining development agricultural low-carbon economy potential,integration of regional agricultural resources,promote the regional agricultural low-carbon and sustainable development of the major environmental significance,to narrow the East Midwest development of agriculture in our country is not the balance of the inter regional cooperation to guide agricultural resources and technology,in order to promote the sustainable development of agriculture in our country also has an important exemplary role.This study starts from the perspective of low carbon constraints,the agricultural carbon emissions into non-expected output.Using the directional distance function and the Malmquist-Luenberger index to analyze the agricultural eco-efficiency and total factor productivity of the Yangtze River during 1995 — 2014,dynamic evolution of agricultural eco-efficiency and environment in the Yangtze River Economic Belt was depicted by Arcgis10.0.Based on this,Using the fixed effect panel model to analyze the main influencing factors of agricultural eco-efficiency,The main conclusions are as follows:(1)From the static analysis,the traditional agricultural eco-efficiency value which does not consider the carbon emissions has been higher than the agricultural eco-efficiency value,both are higher than the national average level,showing a slow decline in the first wave of rising trend,agricultural eco-efficiency in the late period of study to catch up with the traditional agricultural production efficiency trend improving continuously.(2)From the dynamic calculation,the ML index in the Yangtze River Economic Belt is more than 1 during 1995—2014,keep increasing in the past 20 years,the average annual growth of 3.92%.The average annual growth rate of technological progress is 4.06%,the efficiency change is less than 1,is declining year by year.The growth of ML index mainly depends on the improvement of technological progress.From the regional perspective,The ML index of the downstream and middle reaches are higher than the whole average,upstream development is backward.From the point of view,an average annual growth of 7.33% in the first row of Shanghai,and the lowest ranking in Guizhou,is 0.01%,regional differentiation serious.(3)Agricultural production and environmental coordinated development: the coordination between agricultural eco-efficiency and the environment shows a constant improvement during 1995 — 2014,1995,"agricultural production and the environment are more coordinated" in developing areas: Shanghai,Jiangsu and Zhejiang.2014,"agricultural production and the environment highly coordinated" development areas have 6: Shanghai,Jiangsu,Zhejiang,Hubei,Chongqing and Sichuan,coordination improved significantly.(4)The development of regional economy and the agricultural eco-efficiency conforms to the "Environmental Kuznets Curve Hypothesis".Crops affected degree,industrial structure and agricultural mechanization level has significant negative influence on agricultural eco-efficiency,labor culture level and government financial support shows significant positive influence,affects the city level of agricultural eco-efficiency is not significant.